#ifndef __glut_h__
#define __glut_h__

/* Copyright (c) Mark J. Kilgard, 1994, 1995, 1996. */

/* This program is freely distributable without licensing fees  and is
   provided without guarantee or warrantee expressed or  implied. This
   program is -not- in the public domain. */

#if defined(WIN32)
#include <windows.h>
#pragma warning (disable:4244)        /* disable bogus conversion warnings */
#endif


#ifdef __APPLE__
#include <OpenGL/gl.h>
#include <OpenGL/glu.h>
#else
#include <GL/glu.h>
#include <GL/gl.h>
#endif

/* define APIENTRY and CALLBACK to null string if we aren't on Win32 */
#if !defined(WIN32)
#define APIENTRY
#define CALLBACK
#endif

#ifdef __cplusplus
extern "C" {
#endif

/**
 GLUT API revision history:
 
 GLUT_API_VERSION is updated to reflect incompatible GLUT
 API changes (interface changes, semantic changes, deletions,
 or additions).
 
 GLUT_API_VERSION=1  First public release of GLUT.  11/29/94

 GLUT_API_VERSION=2  Added support for OpenGL/GLX multisampling,
 extension.  Supports new input devices like tablet, dial and button
 box, and Spaceball.  Easy to query OpenGL extensions.

 GLUT_API_VERSION=3  glutMenuStatus added.

 GLUT_API_VERSION=4  glutInitDisplayString, glutWarpPointer,
 glutBitmapLength, glutStrokeLength, glutWindowStatusFunc, dynamic
 video resize subAPI, glutPostWindowRedisplay (NOT FINALIZED!).
**/
#ifndef GLUT_API_VERSION  /* allow this to be overriden */
#define GLUT_API_VERSION        3
#endif

/**
 GLUT implementation revision history:
 
 GLUT_XLIB_IMPLEMENTATION is updated to reflect both GLUT
 API revisions and implementation revisions (ie, bug fixes).

 GLUT_XLIB_IMPLEMENTATION=1  mjk's first public release of
 GLUT Xlib-based implementation.  11/29/94

 GLUT_XLIB_IMPLEMENTATION=2  mjk's second public release of
 GLUT Xlib-based implementation providing GLUT version 2 
 interfaces.

 GLUT_XLIB_IMPLEMENTATION=3  mjk's GLUT 2.2 images. 4/17/95

 GLUT_XLIB_IMPLEMENTATION=4  mjk's GLUT 2.3 images. 6/?/95

 GLUT_XLIB_IMPLEMENTATION=5  mjk's GLUT 3.0 images. 10/?/95

 GLUT_XLIB_IMPLEMENTATION=7  mjk's GLUT 3.1+ with glutWarpPoitner.  7/24/96

 GLUT_XLIB_IMPLEMENTATION=8  mjk's GLUT 3.1+ with glutWarpPoitner
 and video resize.  1/3/97

 GLUT_XLIB_IMPLEMENTATION=9 mjk's GLUT 3.4 release with early GLUT 4 routines.

 GLUT_XLIB_IMPLEMENTATION=11 Mesa 2.5's GLUT 3.6 release.

 GLUT_XLIB_IMPLEMENTATION=12 mjk's GLUT 3.6 release with early GLUT 4 routines + signal handling.
**/
#ifndef GLUT_XLIB_IMPLEMENTATION  /* Allow this to be overriden. */
#define GLUT_XLIB_IMPLEMENTATION    12
#endif

/* Display mode bit masks. */
#define GLUT_RGB            0
#define GLUT_RGBA            GLUT_RGB
#define GLUT_INDEX            1
#define GLUT_SINGLE            0
#define GLUT_DOUBLE            2
#define GLUT_ACCUM            4
#define GLUT_ALPHA            8
#define GLUT_DEPTH            16
#define GLUT_STENCIL            32
#if (GLUT_API_VERSION >= 2)
#define GLUT_MULTISAMPLE        128
#define GLUT_STEREO            256
#endif
#if (GLUT_API_VERSION >= 3)
#define GLUT_LUMINANCE            512
#endif

/* Mouse buttons. */
#define GLUT_LEFT_BUTTON        0
#define GLUT_MIDDLE_BUTTON        1
#define GLUT_RIGHT_BUTTON        2

/* Mouse button  state. */
#define GLUT_DOWN            0
#define GLUT_UP                1

#if (GLUT_API_VERSION >= 2)
/* function keys */
#define GLUT_KEY_F1            1
#define GLUT_KEY_F2            2
#define GLUT_KEY_F3            3
#define GLUT_KEY_F4            4
#define GLUT_KEY_F5            5
#define GLUT_KEY_F6            6
#define GLUT_KEY_F7            7
#define GLUT_KEY_F8            8
#define GLUT_KEY_F9            9
#define GLUT_KEY_F10            10
#define GLUT_KEY_F11            11
#define GLUT_KEY_F12            12
/* directional keys */
#define GLUT_KEY_LEFT            100
#define GLUT_KEY_UP            101
#define GLUT_KEY_RIGHT            102
#define GLUT_KEY_DOWN            103
#define GLUT_KEY_PAGE_UP        104
#define GLUT_KEY_PAGE_DOWN        105
#define GLUT_KEY_HOME            106
#define GLUT_KEY_END            107
#define GLUT_KEY_INSERT            108
#endif

/* Entry/exit  state. */
#define GLUT_LEFT            0
#define GLUT_ENTERED            1

/* Menu usage  state. */
#define GLUT_MENU_NOT_IN_USE        0
#define GLUT_MENU_IN_USE        1

/* Visibility  state. */
#define GLUT_NOT_VISIBLE        0
#define GLUT_VISIBLE            1

/* Window status  state. */
#define GLUT_HIDDEN            0
#define GLUT_FULLY_RETAINED        1
#define GLUT_PARTIALLY_RETAINED        2
#define GLUT_FULLY_COVERED        3

/* Color index component selection values. */
#define GLUT_RED            0
#define GLUT_GREEN            1
#define GLUT_BLUE            2

/* Layers for use. */
#define GLUT_NORMAL            0
#define GLUT_OVERLAY            1

#if defined(WIN32)
/* Stroke font constants (use these in GLUT program). */
#define GLUT_STROKE_ROMAN        ((void*)0)
#define GLUT_STROKE_MONO_ROMAN        ((void*)1)

/* Bitmap font constants (use these in GLUT program). */
#define GLUT_BITMAP_9_BY_15        ((void*)2)
#define GLUT_BITMAP_8_BY_13        ((void*)3)
#define GLUT_BITMAP_TIMES_ROMAN_10    ((void*)4)
#define GLUT_BITMAP_TIMES_ROMAN_24    ((void*)5)
#if (GLUT_API_VERSION >= 3)
#define GLUT_BITMAP_HELVETICA_10    ((void*)6)
#define GLUT_BITMAP_HELVETICA_12    ((void*)7)
#define GLUT_BITMAP_HELVETICA_18    ((void*)8)
#endif
#else
/* Stroke font opaque addresses (use constants instead in source code). */
extern void *glutStrokeRoman;
extern void *glutStrokeMonoRoman;

/* Stroke font constants (use these in GLUT program). */
#define GLUT_STROKE_ROMAN        (&glutStrokeRoman)
#define GLUT_STROKE_MONO_ROMAN        (&glutStrokeMonoRoman)

/* Bitmap font opaque addresses (use constants instead in source code). */
extern void *glutBitmap9By15;
extern void *glutBitmap8By13;
extern void *glutBitmapTimesRoman10;
extern void *glutBitmapTimesRoman24;
extern void *glutBitmapHelvetica10;
extern void *glutBitmapHelvetica12;
extern void *glutBitmapHelvetica18;

/* Bitmap font constants (use these in GLUT program). */
#define GLUT_BITMAP_9_BY_15        (&glutBitmap9By15)
#define GLUT_BITMAP_8_BY_13        (&glutBitmap8By13)
#define GLUT_BITMAP_TIMES_ROMAN_10    (&glutBitmapTimesRoman10)
#define GLUT_BITMAP_TIMES_ROMAN_24    (&glutBitmapTimesRoman24)
#if (GLUT_API_VERSION >= 3)
#define GLUT_BITMAP_HELVETICA_10    (&glutBitmapHelvetica10)
#define GLUT_BITMAP_HELVETICA_12    (&glutBitmapHelvetica12)
#define GLUT_BITMAP_HELVETICA_18    (&glutBitmapHelvetica18)
#endif
#endif

/* glutGet parameters. */
#define GLUT_WINDOW_X            100
#define GLUT_WINDOW_Y            101
#define GLUT_WINDOW_WIDTH        102
#define GLUT_WINDOW_HEIGHT        103
#define GLUT_WINDOW_BUFFER_SIZE        104
#define GLUT_WINDOW_STENCIL_SIZE    105
#define GLUT_WINDOW_DEPTH_SIZE        106
#define GLUT_WINDOW_RED_SIZE        107
#define GLUT_WINDOW_GREEN_SIZE        108
#define GLUT_WINDOW_BLUE_SIZE        109
#define GLUT_WINDOW_ALPHA_SIZE        110
#define GLUT_WINDOW_ACCUM_RED_SIZE    111
#define GLUT_WINDOW_ACCUM_GREEN_SIZE    112
#define GLUT_WINDOW_ACCUM_BLUE_SIZE    113
#define GLUT_WINDOW_ACCUM_ALPHA_SIZE    114
#define GLUT_WINDOW_DOUBLEBUFFER    115
#define GLUT_WINDOW_RGBA        116
#define GLUT_WINDOW_PARENT        117
#define GLUT_WINDOW_NUM_CHILDREN    118
#define GLUT_WINDOW_COLORMAP_SIZE    119
#if (GLUT_API_VERSION >= 2)
#define GLUT_WINDOW_NUM_SAMPLES        120
#define GLUT_WINDOW_STEREO        121
#endif
#if (GLUT_API_VERSION >= 3)
#define GLUT_WINDOW_CURSOR        122
#endif
#define GLUT_SCREEN_WIDTH        200
#define GLUT_SCREEN_HEIGHT        201
#define GLUT_SCREEN_WIDTH_MM        202
#define GLUT_SCREEN_HEIGHT_MM        203
#define GLUT_MENU_NUM_ITEMS        300
#define GLUT_DISPLAY_MODE_POSSIBLE    400
#define GLUT_INIT_WINDOW_X        500
#define GLUT_INIT_WINDOW_Y        501
#define GLUT_INIT_WINDOW_WIDTH        502
#define GLUT_INIT_WINDOW_HEIGHT        503
#define GLUT_INIT_DISPLAY_MODE        504
#if (GLUT_API_VERSION >= 2)
#define GLUT_ELAPSED_TIME        700
#endif

#if (GLUT_API_VERSION >= 2)
/* glutDeviceGet parameters. */
#define GLUT_HAS_KEYBOARD        600
#define GLUT_HAS_MOUSE            601
#define GLUT_HAS_SPACEBALL        602
#define GLUT_HAS_DIAL_AND_BUTTON_BOX    603
#define GLUT_HAS_TABLET            604
#define GLUT_NUM_MOUSE_BUTTONS        605
#define GLUT_NUM_SPACEBALL_BUTTONS    606
#define GLUT_NUM_BUTTON_BOX_BUTTONS    607
#define GLUT_NUM_DIALS            608
#define GLUT_NUM_TABLET_BUTTONS        609
#endif

#if (GLUT_API_VERSION >= 3)
/* glutLayerGet parameters. */
#define GLUT_OVERLAY_POSSIBLE           800
#define GLUT_LAYER_IN_USE        801
#define GLUT_HAS_OVERLAY        802
#define GLUT_TRANSPARENT_INDEX        803
#define GLUT_NORMAL_DAMAGED        804
#define GLUT_OVERLAY_DAMAGED        805

#if (GLUT_API_VERSION >= 4 || GLUT_XLIB_IMPLEMENTATION >= 9)
/* glutVideoResizeGet parameters. */
#define GLUT_VIDEO_RESIZE_POSSIBLE    900
#define GLUT_VIDEO_RESIZE_IN_USE    901
#define GLUT_VIDEO_RESIZE_X_DELTA    902
#define GLUT_VIDEO_RESIZE_Y_DELTA    903
#define GLUT_VIDEO_RESIZE_WIDTH_DELTA    904
#define GLUT_VIDEO_RESIZE_HEIGHT_DELTA    905
#define GLUT_VIDEO_RESIZE_X        906
#define GLUT_VIDEO_RESIZE_Y        907
#define GLUT_VIDEO_RESIZE_WIDTH        908
#define GLUT_VIDEO_RESIZE_HEIGHT    909
#endif

/* glutUseLayer parameters. */
#define GLUT_NORMAL            0
#define GLUT_OVERLAY            1

/* glutGetModifiers return mask. */
#define GLUT_ACTIVE_SHIFT               1
#define GLUT_ACTIVE_CTRL                2
#define GLUT_ACTIVE_ALT                 4

/* glutSetCursor parameters. */
/* Basic arrows. */
#define GLUT_CURSOR_RIGHT_ARROW        0
#define GLUT_CURSOR_LEFT_ARROW        1
/* Symbolic cursor shapes. */
#define GLUT_CURSOR_INFO        2
#define GLUT_CURSOR_DESTROY        3
#define GLUT_CURSOR_HELP        4
#define GLUT_CURSOR_CYCLE        5
#define GLUT_CURSOR_SPRAY        6
#define GLUT_CURSOR_WAIT        7
#define GLUT_CURSOR_TEXT        8
#define GLUT_CURSOR_CROSSHAIR        9
/* Directional cursors. */
#define GLUT_CURSOR_UP_DOWN        10
#define GLUT_CURSOR_LEFT_RIGHT        11
/* Sizing cursors. */
#define GLUT_CURSOR_TOP_SIDE        12
#define GLUT_CURSOR_BOTTOM_SIDE        13
#define GLUT_CURSOR_LEFT_SIDE        14
#define GLUT_CURSOR_RIGHT_SIDE        15
#define GLUT_CURSOR_TOP_LEFT_CORNER    16
#define GLUT_CURSOR_TOP_RIGHT_CORNER    17
#define GLUT_CURSOR_BOTTOM_RIGHT_CORNER    18
#define GLUT_CURSOR_BOTTOM_LEFT_CORNER    19
/* Inherit from parent window. */
#define GLUT_CURSOR_INHERIT        100
/* Blank cursor. */
#define GLUT_CURSOR_NONE        101
/* Fullscreen crosshair (if available). */
#define GLUT_CURSOR_FULL_CROSSHAIR    102
#endif

/* GLUT initialization sub-API. */
extern void APIENTRY glutInit(int *argcp, char **argv);
extern void APIENTRY glutInitDisplayMode(unsigned int mode);
#if (GLUT_API_VERSION >= 4 || GLUT_XLIB_IMPLEMENTATION >= 9)
extern void APIENTRY glutInitDisplayString(const char *string);
#endif
extern void APIENTRY glutInitWindowPosition(int x, int y);
extern void APIENTRY glutInitWindowSize(int width, int height);
extern void APIENTRY glutMainLoop(void);

/* GLUT window sub-API. */
extern int APIENTRY glutCreateWindow(const char *title);
extern int APIENTRY glutCreateSubWindow(int win, int x, int y, int width, int height);
extern void APIENTRY glutDestroyWindow(int win);
extern void APIENTRY glutPostRedisplay(void);
#if (GLUT_API_VERSION >= 4 || GLUT_XLIB_IMPLEMENTATION >= 11)
extern void APIENTRY glutPostWindowRedisplay(int win);
#endif
extern void APIENTRY glutSwapBuffers(void);
extern int APIENTRY glutGetWindow(void);
extern void APIENTRY glutSetWindow(int win);
extern void APIENTRY glutSetWindowTitle(const char *title);
extern void APIENTRY glutSetIconTitle(const char *title);
extern void APIENTRY glutPositionWindow(int x, int y);
extern void APIENTRY glutReshapeWindow(int width, int height);
extern void APIENTRY glutPopWindow(void);
extern void APIENTRY glutPushWindow(void);
extern void APIENTRY glutIconifyWindow(void);
extern void APIENTRY glutShowWindow(void);
extern void APIENTRY glutHideWindow(void);
#if (GLUT_API_VERSION >= 3)
extern void APIENTRY glutFullScreen(void);
extern void APIENTRY glutSetCursor(int cursor);
#if (GLUT_API_VERSION >= 4 || GLUT_XLIB_IMPLEMENTATION >= 9)
extern void APIENTRY glutWarpPointer(int x, int y);
#endif

/* GLUT overlay sub-API. */
extern void APIENTRY glutEstablishOverlay(void);
extern void APIENTRY glutRemoveOverlay(void);
extern void APIENTRY glutUseLayer(GLenum layer);
extern void APIENTRY glutPostOverlayRedisplay(void);
#if (GLUT_API_VERSION >= 4 || GLUT_XLIB_IMPLEMENTATION >= 11)
extern void APIENTRY glutPostWindowOverlayRedisplay(int win);
#endif
extern void APIENTRY glutShowOverlay(void);
extern void APIENTRY glutHideOverlay(void);
#endif

/* GLUT menu sub-API. */
extern int APIENTRY glutCreateMenu(void (*)(int));
extern void APIENTRY glutDestroyMenu(int menu);
extern int APIENTRY glutGetMenu(void);
extern void APIENTRY glutSetMenu(int menu);
extern void APIENTRY glutAddMenuEntry(const char *label, int value);
extern void APIENTRY glutAddSubMenu(const char *label, int submenu);
extern void APIENTRY glutChangeToMenuEntry(int item, const char *label, int value);
extern void APIENTRY glutChangeToSubMenu(int item, const char *label, int submenu);
extern void APIENTRY glutRemoveMenuItem(int item);
extern void APIENTRY glutAttachMenu(int button);
extern void APIENTRY glutDetachMenu(int button);

/* GLUT  sub-API. */
extern void APIENTRY glutDisplayFunc(void (*)(void));
extern void APIENTRY glutReshapeFunc(void (*)(int width, int height));
extern void APIENTRY glutKeyboardFunc(void (*)(unsigned char key, int x, int y));
extern void APIENTRY glutMouseFunc(void (*)(int button, int state, int x, int y));
extern void APIENTRY glutMotionFunc(void (*)(int x, int y));
extern void APIENTRY glutPassiveMotionFunc(void (*)(int x, int y));
extern void APIENTRY glutEntryFunc(void (*)(int state));
extern void APIENTRY glutVisibilityFunc(void (*)(int state));
extern void APIENTRY glutIdleFunc(void (*)(void));
extern void APIENTRY glutTimerFunc(unsigned int millis, void (*)(int value), int value);
extern void APIENTRY glutMenuStateFunc(void (*)(int state));
#if (GLUT_API_VERSION >= 2)
extern void APIENTRY glutSpecialFunc(void (*)(int key, int x, int y));
extern void APIENTRY glutSpaceballMotionFunc(void (*)(int x, int y, int z));
extern void APIENTRY glutSpaceballRotateFunc(void (*)(int x, int y, int z));
extern void APIENTRY glutSpaceballButtonFunc(void (*)(int button, int state));
extern void APIENTRY glutButtonBoxFunc(void (*)(int button, int state));
extern void APIENTRY glutDialsFunc(void (*)(int dial, int value));
extern void APIENTRY glutTabletMotionFunc(void (*)(int x, int y));
extern void APIENTRY glutTabletButtonFunc(void (*)(int button, int state, int x, int y));
#if (GLUT_API_VERSION >= 3)
extern void APIENTRY glutMenuStatusFunc(void (*)(int status, int x, int y));
extern void APIENTRY glutOverlayDisplayFunc(void (*)(void));
#if (GLUT_API_VERSION >= 4 || GLUT_XLIB_IMPLEMENTATION >= 9)
extern void APIENTRY glutWindowStatusFunc(void (*)(int state));
#endif
#endif
#endif

/* GLUT color index sub-API. */
extern void APIENTRY glutSetColor(int, GLfloat red, GLfloat green, GLfloat blue);
extern GLfloat APIENTRY glutGetColor(int ndx, int component);
extern void APIENTRY glutCopyColormap(int win);

/* GLUT state retrieval sub-API. */
extern int APIENTRY glutGet(GLenum type);
extern int APIENTRY glutDeviceGet(GLenum type);
#if (GLUT_API_VERSION >= 2)
/* GLUT extension support sub-API */
extern int APIENTRY glutExtensionSupported(const char *name);
#endif
#if (GLUT_API_VERSION >= 3)
extern int APIENTRY glutGetModifiers(void);
extern int APIENTRY glutLayerGet(GLenum type);
#endif

/* GLUT font sub-API */
extern void APIENTRY glutBitmapCharacter(void *font, int character);
extern int APIENTRY glutBitmapWidth(void *font, int character);
extern void APIENTRY glutStrokeCharacter(void *font, int character);
extern int APIENTRY glutStrokeWidth(void *font, int character);
#if (GLUT_API_VERSION >= 4 || GLUT_XLIB_IMPLEMENTATION >= 9)
extern int APIENTRY glutBitmapLength(void *font, const unsigned char *string);
extern int APIENTRY glutStrokeLength(void *font, const unsigned char *string);
#endif

/* GLUT pre-built models sub-API */
extern void APIENTRY glutWireSphere(GLdouble radius, GLint slices, GLint stacks);
extern void APIENTRY glutSolidSphere(GLdouble radius, GLint slices, GLint stacks);
extern void APIENTRY glutWireCone(GLdouble base, GLdouble height, GLint slices, GLint stacks);
extern void APIENTRY glutSolidCone(GLdouble base, GLdouble height, GLint slices, GLint stacks);
extern void APIENTRY glutWireCube(GLdouble size);
extern void APIENTRY glutSolidCube(GLdouble size);
extern void APIENTRY glutWireTorus(GLdouble innerRadius, GLdouble outerRadius, GLint sides, GLint rings);
extern void APIENTRY glutSolidTorus(GLdouble innerRadius, GLdouble outerRadius, GLint sides, GLint rings);
extern void APIENTRY glutWireDodecahedron(void);
extern void APIENTRY glutSolidDodecahedron(void);
extern void APIENTRY glutWireTeapot(GLdouble size);
extern void APIENTRY glutSolidTeapot(GLdouble size);
extern void APIENTRY glutWireOctahedron(void);
extern void APIENTRY glutSolidOctahedron(void);
extern void APIENTRY glutWireTetrahedron(void);
extern void APIENTRY glutSolidTetrahedron(void);
extern void APIENTRY glutWireIcosahedron(void);
extern void APIENTRY glutSolidIcosahedron(void);

#if (GLUT_API_VERSION >= 4 || GLUT_XLIB_IMPLEMENTATION >= 9)
/* GLUT video resize sub-API. */
extern int APIENTRY glutVideoResizeGet(GLenum param);
extern void APIENTRY glutSetupVideoResizing(void);
extern void APIENTRY glutStopVideoResizing(void);
extern void APIENTRY glutVideoResize(int x, int y, int width, int height);
extern void APIENTRY glutVideoPan(int x, int y, int width, int height);

/* GLUT debugging sub-API. */
extern void APIENTRY glutReportErrors(void);
#endif

#ifdef __cplusplus
}

#endif
#endif                  /* __glut_h__ */
